A producer of a computer and motherboard
|AST, Advantage, Award, Tandon||Ctrl+Alt+Esc|
|Dell||F1 or Del.|
|IBM (outdated models)||Rollover of left and right mouse buttons|
|IBM (models with PS/2)||Ins, Ctrl+Alt+?, Ctrl+Ins
(when a pointer is in the left upper corner)
|Fortiva||Ctrl+Alt+A or Ctrl+Alt+S|
|Packard Bell||F1 or F2|
|Phoenix||Ctrl+S, Ctrl+Alt+S, Ctrl+Alt+Ins|
|Sony||F3, then F2 or F1|
|Tandon||Esc (directly when the power is turned on) or Ctrl+Shift+Esc|
|Toshiba||Esc, and F1 in older models|
|Olivetti||Shift+Ctrl+Alt+Del on additional keyboard|
|Miscellaneous||Crtl+Esc, Crtl+Alt+ “+”|
If everything was done correctly, BIOS Setup window will open, and if something is incorrect, a loading will begin; you can interrupt it by pressing a combination Ctr+Alt+Delete and a key Reset on a system unit.
If you work in DOS, you can open BIOS Setup without the preliminary computer restarting. You should only press one of the following key combinations: Ctrl+Alt+Esc, Ctrl+Alt+Enter, Ctrl+Alt+A or Ctrl+Alt+S. This method is correct for most of computers and cannot be performed in other operating systems, for example Windows, Linux and other. Such key combination cannot also be used in DOS emulator.
As a rule, BIOS SETUP window is a menu with a list of sections that include commands for parameter control. Some BIOS support operation with a mouse and look like a set of files with stored commands.